Dimensions of pressure are same as that of

In the final answer of the expression $\frac{(29.2 - 20.2)(1.79 \times 10^5)}{1.37}$,the number of significant figures is

Which of the following have the same number of significant figures?
$(A)$ $0.00253$
$(B)$ $1.0003$
$(C)$ $15.0$
$(D)$ $163$
Choose the correct answer from the options given below:

How is $5000$ represented with $3$ significant figures?

What is the boiling point of water in the Fahrenheit scale (in $^\circ F$)?

One calorie is equal to (in $J$)